83942461 has 2 divisors, whose sum is σ = 83942462. Its totient is φ = 83942460.

The previous prime is 83942459. The next prime is 83942471. The reversal of 83942461 is 16424938.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83722500 + 219961 = 9150^2 + 469^2 .

It is a cyclic number.

It is not a de Polignac number, because 83942461 - 2¹ = 83942459 is a prime.

Together with 83942459, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 83942461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83942401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41971230 + 41971231.

It is an arithmetic number, because the mean of its divisors is an integer number (41971231).

Almost surely, 2^83942461 is an apocalyptic number.

It is an amenable number.

83942461 is a deficient number, since it is larger than the sum of its proper divisors (1).

83942461 is an equidigital number, since it uses as much as digits as its factorization.

83942461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 37.

The square root of 83942461 is about 9162.0118423848. The cubic root of 83942461 is about 437.8518938653.

The spelling of 83942461 in words is "eighty-three million, nine hundred forty-two thousand, four hundred sixty-one".